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TMUX7436F

TMUX7436F Series

±60-V fault-protected, dual 2:1 multiplexer with latch-up immunity and 1.8-V logic

Manufacturer: Texas Instruments

Catalog

±60-V fault-protected, dual 2:1 multiplexer with latch-up immunity and 1.8-V logic

Key Features

Wide supply voltage range:Single supply: 8 V to 44 VDual supply: ±5 V to ±22 VIntegrated fault protection:Overvoltage protection, source to supplies or source to drain: ±85 VOvervoltage protection: ±60 VPowered-off protection: ±60 VInterrupt flags to indicate fault statusOutput open circuited during faultLatch-up immunity by device construction6 kV human body model (HBM) ESD ratingLow On-Resistance: 8.6 Ω typicalFlat On-Resistance: 10 mΩ typical1.8-V Logic capableFailsafe logic: up to 44 V independent of supplyIndustry-standard TSSOP and smaller WQFN packagesWide supply voltage range:Single supply: 8 V to 44 VDual supply: ±5 V to ±22 VIntegrated fault protection:Overvoltage protection, source to supplies or source to drain: ±85 VOvervoltage protection: ±60 VPowered-off protection: ±60 VInterrupt flags to indicate fault statusOutput open circuited during faultLatch-up immunity by device construction6 kV human body model (HBM) ESD ratingLow On-Resistance: 8.6 Ω typicalFlat On-Resistance: 10 mΩ typical1.8-V Logic capableFailsafe logic: up to 44 V independent of supplyIndustry-standard TSSOP and smaller WQFN packages

Description

AI
The TMUX7436F is a complementary metal-oxide semiconductor (CMOS) analog multiplexer with latch-up immunity in a dual channel, 2:1 configuration. The device works well with dual supplies (±5 V to ±22 V), a single supply (8 V to 44 V), or asymmetric supplies (such as VDD= 12 V, VSS= –5 V). The overvoltage protection is available in powered and powered-off conditions, making the TMUX7436F device suitable for applications where power supply sequencing cannot be precisely controlled. The device blocks fault voltages up to +60 V or −60 V relative to ground in powered and powered-off conditions. When no power supplies are present, the switch channels remain in the OFF state regardless of switch input conditions, and any control signal present on the logic pins is ignored. If the signal path input voltage on any Sx pin exceeds the supply voltage (VDDor VSS) by a threshold voltage (VT), then the channel turns OFF and the Sx pin becomes high impedance. The drain pin (Dx) is either pulled to the fault supply voltage that was exceeded or left floating depending on the DR control logic. The TMUX7436F device provides two active-low interrupt flags (FF and SF) to provide details of the fault and help system diagnostics. The FF flag indicates if any of the source inputs are experiencing a fault condition, while the SF flag is used to decode which specific inputs are experiencing a fault condition. The TMUX7436F is a complementary metal-oxide semiconductor (CMOS) analog multiplexer with latch-up immunity in a dual channel, 2:1 configuration. The device works well with dual supplies (±5 V to ±22 V), a single supply (8 V to 44 V), or asymmetric supplies (such as VDD= 12 V, VSS= –5 V). The overvoltage protection is available in powered and powered-off conditions, making the TMUX7436F device suitable for applications where power supply sequencing cannot be precisely controlled. The device blocks fault voltages up to +60 V or −60 V relative to ground in powered and powered-off conditions. When no power supplies are present, the switch channels remain in the OFF state regardless of switch input conditions, and any control signal present on the logic pins is ignored. If the signal path input voltage on any Sx pin exceeds the supply voltage (VDDor VSS) by a threshold voltage (VT), then the channel turns OFF and the Sx pin becomes high impedance. The drain pin (Dx) is either pulled to the fault supply voltage that was exceeded or left floating depending on the DR control logic. The TMUX7436F device provides two active-low interrupt flags (FF and SF) to provide details of the fault and help system diagnostics. The FF flag indicates if any of the source inputs are experiencing a fault condition, while the SF flag is used to decode which specific inputs are experiencing a fault condition.